Audio Nirvana 300b amp - has anyone heard it?

Audio Nirvana 300b amp looks like grate value at ~$1500 
Its designed in the US, assembled in China, though appears of high build quality
Has anyone heard it, or can provide impressions??
Wonder what transformers they are using as that's the single most costly parts in a SET. For that dollar I'm thinking the parts quality can't be all that good. I meen desent 300B tubes cost $300 a pair. I suppose it's a wait and see what people think after listening.